340936

Information

• Patent Grant
• 340936

• References
• Source

• Patent Number

  340,936

• Date Filed

  Not available

• Date Issued

  Tuesday, April 27, 1886
  138 years ago

• CPC

  • G04B1/165 - Spring cylinder with friction transmission to the gearing (especially for Roskopf clockworks)
  • G04B1/20 - Protecting arrangements against rupture or overwinding of the mainspring located in the barrel or attached to the barrel

• US Classifications

  • 368 - Horology: time measuring systems or devices
  • 968 - Horology